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Description
The Grid Scheduling Simulator (GSSIM) is
a framework provides an easy-to-use Grid
scheduling framework for enabling
simulations of a wide range of
scheduling algorithms in multi-level,
heterogeneous Grid infrastructures.
GSSIM has been designed as a simulation
framework which enables easy-to-use
experimental studies of various
scheduling algorithms. Its goal is also
to allow researchers to move the
implementations of scheduling
algorithms between simulation
environments and real systems. GSSIM
supports multilevel scheduling
architectures with plugged-in
algorithms both for Grid and local
schedulers. It also enables both
reading existing real workloads and
generating synthetic Grid workloads
based on given probabilistic
distributions and constraints. These
workloads are compliant with known
workload formats such as Standard
Workload Format (SWF) and Grid Workload
Format (GWF). The framework also
supports generation of resource
failures which may be useful in
modeling realistic behavior of Grid
environments. The GSSIM framework is
based on GridSim and SimJava2 packages.
It provides a layer added on top of the
GridSim adding capabilities to enable
easy and flexible modeling of Grid
scheduling components. GSSIM also
provides an advanced generator module
using real and synthetic workloads.
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